... 1 .ZFMacngh = 45 ,14 .39 ,10 34624 = 230,62 daN/cm2trong đó: Z 1 = η.h0 = 0,85 .17 = 14 ,45 cm;an1 = 1. 1,3 .1. 6 10 .1, 2200 17 32, 81 −.7.(4 - 10 0.0,0033). 12 = 0,084 mman2 = 1. 1 .1. 6 10 .1, 2200 230,62−.7.(4 ... ( 8QnkbhRmcnkb 1, 1. 215 0.0,50322)26704 .1. 15 ,1( 76.30.5,7.9,0.8= 11 ,8 cm Chọn u = 10 cm.- Tính toán cốt xiên, cốt đai: qd = ufnRmdaa = 10 503,0.2. 215 0 .1, 1= 237,92 daN/cm Qdb ... hbRmMnknbcn= 2 18 .10 0.90 .1 40500 .1. 15 ,1 = 0, 016 → α = 0, 016 Fa = aanbRmbhRm .0α = 2700 .1, 1 016 ,0 .18 .10 0.90 .1 = 0,873 (cm2)Chọn 5φ8/1m ( có F’a = 2, 51 cm2) 2.4.2. Trường...